harbor/api/base.go

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/*
Copyright (c) 2016 VMware, Inc. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package api
import (
"encoding/json"
"net/http"
"github.com/vmware/harbor/dao"
"github.com/vmware/harbor/models"
"github.com/astaxie/beego"
)
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// BaseAPI wraps common methods for controllers to host API
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type BaseAPI struct {
beego.Controller
}
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// Render returns nil as it won't render template
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func (b *BaseAPI) Render() error {
return nil
}
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// RenderError provides shortcut to render http error
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func (b *BaseAPI) RenderError(code int, text string) {
http.Error(b.Ctx.ResponseWriter, text, code)
}
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// DecodeJSONReq decodes a json request
func (b *BaseAPI) DecodeJSONReq(v interface{}) {
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err := json.Unmarshal(b.Ctx.Input.CopyBody(1<<32), v)
if err != nil {
beego.Error("Error while decoding the json request:", err)
b.CustomAbort(http.StatusBadRequest, "Invalid json request")
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}
}
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// ValidateUser checks if the request triggered by a valid user
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func (b *BaseAPI) ValidateUser() int {
sessionUserID := b.GetSession("userId")
if sessionUserID == nil {
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beego.Warning("No user id in session, canceling request")
b.CustomAbort(http.StatusUnauthorized, "")
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}
userID := sessionUserID.(int)
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u, err := dao.GetUser(models.User{UserID: userID})
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if err != nil {
beego.Error("Error occurred in GetUser:", err)
b.CustomAbort(http.StatusInternalServerError, "Internal error.")
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}
if u == nil {
beego.Warning("User was deleted already, user id: ", userID, " canceling request.")
b.CustomAbort(http.StatusUnauthorized, "")
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}
return userID
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}